Space curve rapid three-dimensional interpolation method, system and terminal based on neighbor distribution

The invention discloses a space curve rapid three-dimensional interpolation method, system and terminal based on neighbor distribution, and relates to the technical field of data interpolation, and the key points of the technical scheme are as follows: obtaining an unknown point to be tested and two known test points in neighbor distribution with the unknown point to be tested; establishing a spatial straight line according to the two known test points; selecting a point closest to the unknown to-be-measured point from the spatial straight line as a reference point; and according to the coordinate information of the corresponding dimension in the reference point, approximately determining the coordinate information of the unknown dimension in the unknown point to be measured. According to the method, the value of the coordinate point closest to the unknown to-be-tested point on the known test point connecting line is approximately used as an interpolation result, so that the multi-point coordinate requirement